JP7432773B2 - multifunctional film - Google Patents

Description

The present disclosure relates to multifunctional films, particularly for use in forming vacuum bags.

Vacuum bags are commonly used in the manufacture (e.g., curing) of various parts such as aircraft parts. Such vacuum bags are generally composed of multiple distinct layers of material used to form the vacuum bag. The separate layers facilitate curing parts encapsulated within the vacuum bag at high pressures and temperatures while preventing the vacuum bag from adhering to the part. However, manufacturing and using separate layers to form a vacuum bag increases the labor and cost required to manufacture and use the vacuum bag. Therefore, an improved multifunctional film that can replace multiple layers of material in the manufacture of vacuum bags would be desirable.

According to a first aspect, a multifunctional film for a vacuum bag may include a flexible barrier film that may include a textured surface. The multifunctional film may further include a release coating covering the textured surface of the flexible barrier film. The multifunctional film may further have an oxygen (O ₂ ) permeability of less than or equal to about 1100 cc/(m ² ·day · atm) and a stability rating of less than or equal to about 90%, where the stability rating is less than or equal to 200°C. is defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of .

According to yet another aspect, a multifunctional film for a vacuum bag may include a flexible barrier film that may include a textured surface. The multifunctional film may further include a release coating covering the textured surface of the flexible barrier film. The flexible barrier film may have an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less. The multifunctional film may further have a stability rating of about 90% or less, where the stability rating is the maximum decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. Defined as a percentage.

According to yet another aspect, a multifunctional film for a vacuum bag may include a flexible barrier film that may include a textured surface. The multifunctional film may further include a release coating covering the textured surface of the flexible barrier film. The flexible barrier film may include a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof. The release coating may include silicone-based materials, acrylic-based materials, urethane-based materials, urethane-acrylate-based materials, fluoropolymer-based materials, or combinations thereof.

According to another aspect, the vacuum bag may include a multifunctional film. The multifunctional film may include a flexible barrier film that may include a textured surface. The multifunctional film may further include a release coating covering the textured surface of the flexible barrier film. The multifunctional film may further have an oxygen (O ₂ ) permeability of less than or equal to about 1100 cc/(m ² ·day · atm) and a stability rating of less than or equal to about 90%, where the stability rating is less than or equal to 200°C. is defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of .

According to yet another aspect, the vacuum bag may include a multifunctional film. The multifunctional film may include a flexible barrier film that may include a textured surface. The multifunctional film may further include a release coating covering the textured surface of the flexible barrier film. The flexible barrier film may have an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less. The multifunctional film may further have a stability rating of about 90% or less, where the stability rating is the maximum decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. Defined as a percentage.

According to yet another aspect, the vacuum bag may include a multifunctional film. The multifunctional film may include a flexible barrier film that may include a textured surface. The multifunctional film may further include a release coating covering the textured surface of the flexible barrier film. The flexible barrier film may include a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof. The release coating may include silicone-based materials, acrylic-based materials, urethane-based materials, urethane-acrylate-based materials, fluoropolymer-based materials, or combinations thereof.

According to yet another aspect, a method of forming a multifunctional film for a vacuum bag includes providing a flexible barrier film and embossing a textured surface on a first side of the flexible barrier film. and coating the textured surface of the flexible barrier film with a release coating. The multifunctional film may further have an oxygen (O ₂ ) permeability of less than or equal to about 1100 cc/(m ² ·day · atm) and a stability rating of less than or equal to about 90%, where the stability rating is less than or equal to 200°C. is defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of .

According to yet another aspect, a method of forming a multifunctional film for a vacuum bag includes providing a flexible barrier film and embossing a textured surface on a first side of the flexible barrier film. and coating the textured surface of the flexible barrier film with a release coating. The flexible barrier film may have an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less. The multifunctional film may further have a stability rating of about 90% or less, where the stability rating is the maximum decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. Defined as a percentage.

According to yet another aspect, a method of forming a multifunctional film for a vacuum bag includes providing a flexible barrier film and embossing a textured surface on a first side of the flexible barrier film. and coating the textured surface of the flexible barrier film with a release coating. The flexible barrier film may include a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof. The release coating may include silicone-based materials, acrylic-based materials, urethane-based materials, urethane-acrylate-based materials, fluoropolymer-based materials, or combinations thereof.

The embodiments are shown by way of example and are not limited to the accompanying drawings.
FIG. 2 illustrates a multifunctional film according to embodiments described herein. FIG. 2 illustrates a vacuum bag including a multifunctional film according to embodiments described herein. 1 is a flowchart illustrating a method for forming a multifunctional film according to embodiments described herein.

Those skilled in the art will appreciate that elements in the figures are shown for simplicity and clarity and are not necessarily drawn to scale.

The following description focuses on particular implementations and embodiments of the teachings. The detailed description is provided to help explain particular embodiments and is not to be construed as a limitation on the scope or applicability of the present disclosure or teachings. It will be appreciated that other embodiments may be used based on the disclosure and teachings provided herein.

The term "comprises," "comprising," "includes," "including," "has," "having," or any other thereof; Variations are intended to cover non-exclusive inclusions. For example, a method, article, or apparatus that includes a list of features is not necessarily limited to those features, but may include other features not explicitly listed, or that such method, article, or apparatus includes. May include other unique features. Further, unless stated to the contrary, "or" refers to an inclusive or and not to an exclusive or. For example, condition A or B is satisfied by one of the following: A is true (or exists), B is false (or does not exist), A is false (or does not exist), ), B is true (or exists), and both A and B are true (or exist).

Also, the use of "a" or "an" is used to describe elements and components described herein. This is done merely for convenience and to give a general sense of the scope of the invention. This description should be understood as one, at least one, or the singular also includes the plural and vice versa, unless it is clear that it is meant otherwise. For example, where a single article is described herein, two or more articles can be substituted for the single article. Similarly, if more than one article is described herein, a single article can be replaced by two or more articles.

Embodiments described herein generally relate to multifunctional films for vacuum bags. According to certain embodiments, the multifunctional film may include a flexible barrier film that may include a textured surface. The multifunctional film may further include a release coating covering the textured surface of the flexible barrier film.

For purposes of illustration, FIG. 1 depicts a multifunctional film 100 according to embodiments described herein. As shown in FIG. 1, multifunctional film 100 may include a flexible barrier film 110 and a release coating 120. The flexible barrier film 110 may include a textured surface 115 and the release coating 120 may cover the textured surface 115 of the flexible barrier film 110.

According to certain embodiments, multifunctional film 100 may have a certain oxygen (O ₂ ) permeability measured according to ASTM F3945. For example, the multifunctional film 100 is about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m ² ·day · atm) or less, or about 800 cc/(m ² ·day · atm) or less, or About 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less, or about 400cc/( ^m2・day・atm) or less・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/( ^m2・day・atm) or less, etc., about 1100cc / ₍ m ² ·day · atm) or less. According to still other embodiments, the multifunctional film 100 has an air flow rate of about 1000 cc/( ^m2 ·day·atm) or less, or about 900 cc/( ^m2 ·day·atm) or less, or about 800 cc/( ^m2 ·day·atm) or less. day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less, or about 400cc/( ^m2・day・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/( ^m2・day・atm) or less The oxygen (O ₂ ) permeability may be less than or equal to about 1100 cc/(m ² ·day · atm), such as less than or equal to about 1100 cc/(m 2 ·day · atm). It will be appreciated that the oxygen (O ₂ ) permeability of the multifunctional film 100 can range between any of the above minimum and maximum values. It will further be appreciated that the oxygen (O ₂ ) permeability of the multifunctional film 100 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, multifunctional film 100 may have a particular stability rating. For purposes of embodiments described herein, stability ratings are defined as the maximum percent decrease in elongation at break measured using ASTM D882 after exposure to a temperature of 200° C. for 12 hours. According to certain embodiments, the multifunctional film 100 is about 88% or less, or about 85% or less, or about 83% or less, or about 80% or less, or about 78% or less, or about 75% or less, or It can have a stability rating of about 90% or less, such as about 73% or less, or even about 70% or less. It will be appreciated that the stability rating for multifunctional film 100 can range between any of the above values. It will be further understood that the stability rating for multifunctional film 100 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, multifunctional film 100 may have a particular Young's modulus measured according to ASTM D882. For example, the multifunctional film 100 may be at least about 50 MPa, or at least about 100 MPa, or at least about 150 MPa, or at least about 200 MPa, or at least about 250 MPa, or at least about 300 MPa, or at least about 350 MPa, or at least about 400 MPa, or at least about It may have a Young's modulus of at least about 10 MPa, such as 450 MPa, or even at least about 500 MPa. According to still other embodiments, the multifunctional film 100 has a pressure of about 9,000 MPa or less, or about 8,000 MPa or less, or about 7,000 MPa or less, or about 6,000 MPa or less, or about 5,000 MPa or less, or It may have a Young's modulus of about 10,000 MPa or less, such as about 4,000 MPa or less, or about 3,000 MPa or less, or about 2,000 MPa or less. It will be appreciated that the Young's modulus of the multifunctional film 100 can range between any of the above minimum and maximum values. It will be further understood that the Young's modulus of the multifunctional film 100 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, multifunctional film 100 may have a specific elongation at break measured according to ASTM D882. For example, the multifunctional film 100 may contain at least about 2%, or at least about 3%, or at least about 4%, or at least about 5%, or at least about 6%, or at least about 7%, or at least about 8%. , or at least about 1%, such as at least about 9%, or even at least about 10%. According to still other embodiments, the multifunctional film 100 comprises about 2000% or less, or about 1500% or less, or about 1000% or less, or about 500% or less, or about 100% or less, or about 90% or less, or may have an elongation at break of about 80% or less, or about 70% or less, or about 60% or less, or about 50% or less, or about 40% or less, or about 30% or less. It will be appreciated that the elongation at break of the multifunctional film 100 can range between any of the above minimum and maximum values. It will be further understood that the elongation at break of the multifunctional film 100 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, the multifunctional film 100 can have a particular release coating thickness ratio RC _T / _FBFT , where RC _T is the thickness of the release coating and FBF _T is the flexible This is the thickness of the barrier film. For example, the multifunctional film 100 may be about 15 or less, or about 14 or less, or about 13 or less, or about 12 or less, or about 11 or less, or about 10 or less, or about 9 or less, or about 8 or less, or about 7 or less than or equal to about 16, such as less than or equal to about 6, or less than or equal to about 5, or less than or equal to about 4, or less than or equal to about 3, or less than or equal to about 2, or less than or equal to about 1.5, or even less than or equal to about 1.1. It may have a thickness ratio RC _T / _FBFT . According to still other embodiments, the multifunctional film 100 has at least about 0.00002, or at least about 0.00003, or at least about 0.00004, or at least about 0.00005, or at least about 0.00006, or at least A release coating thickness of at least about 0.00001, such as about 0.00007 or at least about 0.00008 or at least about 0.00009, or at least about 0.0001, or at least about 0.00015, or even at least about 0.0002. may have a ratio RC _T / _FBFT . It will be appreciated that the release coating thickness ratio RC _T / _FBFT of multifunctional film 100 can range between any of the minimum and maximum values described above. It will be further understood that the release coating thickness ratio RC _T /FBF _T of multifunctional film 100 can be any value between any of the minimum and maximum values described above.

According to yet other embodiments, flexible barrier film 110 may include certain materials. For example, flexible barrier film 110 may include a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof. According to yet other embodiments, the flexible barrier film 110 may be comprised of a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof.

According to yet other embodiments, flexible barrier film 110 may include certain nylon resin grade materials. For example, flexible barrier film 110 may include nylon 6, nylon 6,6, nylon 6,4, nylon 6,66, nylon MXD6, PAMACM12, PA6I, PA6I/6T, or any combination thereof. According to yet other embodiments, the flexible barrier film 110 is made of nylon 6, nylon 6,6, nylon 6,4, nylon 6,66, nylon MXD6, PAMACM12, PA6I, PA6I/6T, or any of the following. It can consist of a combination of

According to certain embodiments, flexible barrier film 110 may have a certain thickness. For example, the flexible barrier film 110 can be at least about 0.3 mil, or at least about 0.4 mil, or at least about 0.5 mil, or at least about 0.6 mil, or at least about 0.7 mil, or It can have a thickness of at least about 0.2 mil, such as at least about 0.8 mil, or at least about 0.9 mil, or even at least about 1.0 mil. According to still other embodiments, the flexible barrier film 110 is, for example, about 25 mils or less, or about 20 mils or less, or about 15 mils or less, or about 14 mils or less, or about 13 mils or less, or about It can have a thickness of about 30 mils or less, such as 12 mils or less, or about 11 mils or less, or about 10 mils or less, or about 9 mils or less, or even about 8 mils or less. It will be appreciated that the thickness of the flexible barrier film 110 can range between any of the above minimum and maximum values. It will be further appreciated that the thickness of the flexible barrier film 110 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, release coating 120 may include certain materials. For example, release coating 120 may include a silicon-based material, a fluoropolymer-based material, an acrylic-based material, a urethane-based material, a urethane-acrylate-based material, or a combination thereof. According to yet other embodiments, release coating 120 may be comprised of silicon-based materials, fluoropolymer-based materials, acrylic-based materials, urethane-based materials, urethane-acrylate-based materials, or combinations thereof.

According to yet other embodiments, release coating 120 may further include certain hard coats. For example, release coating 120 may further include a multifunctional acrylic UV curable coating or a multifunctional acrylic thermosetting coating.

According to yet other embodiments, the release coating 120 may have a specific release force measured using a 180 degree peel test on a 2 inch by 6 inch sample. For example, the release coating may be less than or equal to about 95 g/in, or less than or equal to about 90 g/in, or less than or equal to about 85 g/in, or less than or equal to about 80 g/in, or less than or equal to about 75 g/in, or less than or equal to about 70 g/in, or about 65 g/in /inch or less, or about 60 g/inch or less, or about 55 g/inch or less, or about 50 g/inch or less, or about 45 g/inch or less, or even about 40 g/inch or less, or about 100 g/inch or less. can have. It will be appreciated that the release force of release coating 120 can range between any of the above values. It will further be appreciated that the release force of release coating 120 can be any value between any of the above values.

According to certain embodiments, release coating 120 may have a certain thickness. For example, the release coating 120 may be at least about 0.02 microns, or at least about 0.03 microns, or at least about 0.04 microns, or at least about 0.05 microns, or at least about 0.06 microns, or at least about 0. It can have a thickness of at least about 0.01 micron, such as .07 micron, or at least about 0.08 micron, or at least about 0.09 micron, or even at least about 0.1 micron. According to still other embodiments, the release coating 120 is about 90 microns or less, or about 80 microns or less, or about 70 microns or less, or about 60 microns or less, or about 50 microns or less, or about 40 microns or less, or such as about 30 microns or less, or about 20 microns or less, or about 10 microns or less, or about 9 microns or less, or about 8 microns or less, or about 7 microns or less, or about 6 microns or less, or even about 5 microns or less, It can have a thickness of about 100 microns or less. It will be appreciated that the thickness of release coating 120 can range between any of the minimum and maximum values listed above. It will further be appreciated that the thickness of release coating 120 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, textured surface 115 may include a repeating pattern of channels. According to yet other embodiments, the repeating pattern of channels may be in the form of a crosshatch pattern. According to yet other embodiments, the repeating pattern of channels may be in the form of a woven pattern. According to yet other embodiments, the repeating pattern of channels may have an isotropic orientation. According to yet other embodiments, the repeating pattern of channels may have an anisotropic orientation.

According to yet other embodiments, the channels of textured surface 115 may have a particular average channel width _ACW . For example, the channel may be at least about 0.2 mm, or at least about 0.3 mm, or at least about 0.4 mm, or at least about 0.5 mm, or at least about 0.6 mm, or at least about 0.7 mm, or at least about 0. The average channel width AC _W may be at least about 0.1 mm, such as .8 mm, or at least about 0.9 mm, or even at least about 1.0 mm. According to still other embodiments, the channel is, for example, about 90 mm or less, or about 80 mm or less, or about 70 mm or less, or about 60 mm or less, or about 50 mm or less, or about 40 mm or less, or about 30 mm or less, or about It may have an average channel width AC _W of about 100 mm or less, such as 25 mm or less, or about 20 mm or less, or even about 15 mm or less. It will be appreciated that the average channel width AC _W may be within a range between any of the above minimum and maximum values. It will further be appreciated that the average channel width AC _W can be any value between any of the above minimum and maximum values.

According to yet other embodiments, the channels of textured surface 115 may have a particular average channel depth AC _D. For example, the channels may have an average channel depth AC _D of at least about 1 micrometer, such as at least about 1.1 micrometers, or at least about 1.2 micrometers, or at least about 1.3 micrometers. According to still other embodiments, the channels have a mil diameter of about 450 mils or less, or about 400 mils or less, or about 350 mils or less, or about 300 mils or less, or about 250 mils or less, or about 200 mils or less, or about 200 mils or less, or about 250 mils or less, or about 200 mils or less, or about It may have an average channel depth AC _D of less than or equal to about 500 mils, such as less than or equal to about 150 mils, or less than or equal to about 100 mils, or less than or equal to about 75 mils, or less than or equal to about 50 mils, or less than or equal to about 25 mils. It will be appreciated that the average channel depth AC _D of the channels may be within a range between any of the above minimum and maximum values. It will further be appreciated that the average channel depth AC _D can be any value between any of the above minimum and maximum values.

It will be appreciated that multifunctional film 100 may be used to form a vacuum bag. For purposes of illustration, FIG. 2 shows a vacuum bag 200 that includes a multifunctional film 201 enclosing a component 202 on a surface 203. For purposes of the embodiments described herein, the multifunctional film 201 used to form the vacuum bag 200 has the attributes described with reference to the multifunctional film 100 described with reference to FIG. 1 above. or characteristics. According to embodiments described herein, part 202 may be any part that can be formed, eg, cured, while enclosed within vacuum bag 200.

According to certain embodiments, vacuum bag 200 may have a certain oxygen (O ₂ ) permeability measured according to ASTM F3945. For example, the vacuum bag 200 has a capacity of about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m ² ·day · atm) or less, or about 800 cc/(m ² ·day · atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less, or about 400cc/( ^m2・day・atm) or less about 1100cc/, such as less than about 300cc/( ^m2・day・atm), or less than about 200cc/( ^m2・day・atm), or less than about 100cc/( ^m2・day・atm), etc. It may have an oxygen (O ₂ ) permeability of (m ² ·day · atm) or less. According to still other embodiments, the vacuum bag 200 has a capacity of about 1000 cc/(m ² ·day atm) or less, or about 900 cc/(m ² ·day atm) or less, or about 800 cc/(m ² ·day atm)・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less, or about 400cc /( ^m2・day・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/( ^m2・day・atm) ) or less, and may have an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less. It will be appreciated that the oxygen (O ₂ ) permeability of the vacuum bag 200 can be within a range between any of the above minimum and maximum values. It will further be appreciated that the oxygen (O ₂ ) permeability of the vacuum bag 200 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, vacuum bag 200 may have a particular stability rating. For purposes of embodiments described herein, stability ratings are defined as the maximum percent decrease in elongation at break measured using ASTM D882 after exposure to a temperature of 200° C. for 12 hours. According to certain embodiments, the vacuum bag 200 is, for example, about 88% or less, or about 85% or less, or about 83% or less, or about 80% or less, or about 78% or less, or about 75% or less, or can have a stability rating of about 90% or less, such as about 73% or less, or even about 70% or less. It will be appreciated that the stability rating for vacuum bag 200 can range between any of the above values. It will further be appreciated that the stability rating of the vacuum bag 200 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, vacuum bag 200 may have a particular Young's modulus measured according to ASTM D882. For example, the vacuum bag 200 has a pressure of at least about 50 MPa, or at least about 100 MPa, or at least about 150 MPa, or at least about 200 MPa, or at least about 250 MPa, or at least about 300 MPa, or at least about 350 MPa, or at least about 400 MPa, or at least about 450 MPa. , or even at least about 500 MPa, such as at least about 10 MPa. According to still other embodiments, the vacuum bag 200 has a pressure of about 9,000 MPa or less, or about 8,000 MPa or less, or about 7,000 MPa or less, or about 6,000 MPa or less, or about 5,000 MPa or less, or about It may have a Young's modulus of about 10,000 MPa or less, such as about 4,000 MPa or less, or about 3,000 MPa or less, or about 2,000 MPa or less. It will be appreciated that the Young's modulus of the vacuum bag 200 can range between any of the above minimum and maximum values. It will be further appreciated that the Young's modulus of the vacuum bag 200 can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, vacuum bag 200 may have a specific elongation at break measured according to ASTM D882. For example, the vacuum bag 200 may be at least about 2%, or at least about 3%, or at least about 4%, or at least about 5%, or at least about 6%, or at least about 7%, or at least about 8%, or at least It may have an elongation to break of at least about 1%, such as about 9%, or even at least about 10%. According to still other embodiments, the vacuum bag 200 is about 2000% or less, or about 1500% or less, or about 1000% or less, or about 500% or less, or about 100% or less, or about 90% or less, or It may have an elongation at break of about 80% or less, or about 70% or less, or about 60% or less, or about 50% or less, or about 40% or less, or about 30% or less. It will be appreciated that the elongation at break of the vacuum bag 200 can range between any of the minimum and maximum values listed above. It will further be appreciated that the elongation at break of the vacuum bag 200 can be any value between any of the minimum and maximum values listed above.

FIG. 3 is a flowchart illustrating a method for forming the multifunctional film 100 described herein. According to certain embodiments described herein, as shown in FIG. 3, a method 300 of forming a multifunctional film includes a first step 310 of providing a flexible barrier film; A second step 320 of creating a textured surface on the first side of the film and a third step 330 of coating the textured surface of the flexible barrier film with a release coating.

According to certain embodiments, the second step 320 of creating a textured surface on the first side of the flexible barrier film includes embossing the textured surface on the first side of the flexible barrier film. may include. According to yet other embodiments, the second step 320 of creating a textured surface on the first side of the flexible barrier film includes heat embossing the textured surface on the first side of the flexible barrier film. This may include processing.

According to yet other embodiments, the third step 330 of coating the textured surface of the flexible barrier film with a release coating includes gravure coating (reverse or forward), slot die coating, roll coating (reverse or forward), May include spray coating, Meyer rod coating, or flood coating.

According to yet other embodiments, method 300 may optionally further include curing the coating on the textured surface of the flexible barrier film (not shown in FIG. 3).

According to certain embodiments, curing may occur at a temperature of about 200°C or less, such as about 190°C or less, even about 180°C or less. According to yet other embodiments, curing may occur for 12 hours.

According to certain embodiments, the multifunctional film formed according to method 300 may have a particular oxygen (O ₂ ) permeability measured according to ASTM F3945. For example, a multifunctional film formed according to method 300 may contain less than or equal to about 1000 cc/(m ² ·day · atm), or less than or equal to about 900 cc/(m ² ·day · atm), or less than or equal to about 800 cc/(m ² ·day · atm). atm) or less, or approximately 700 cc/(m ² · day · atm) or less, or approximately 600 cc/(m ² · day · atm) or less, or approximately 500 cc/(m 2 · day · atm) or less, or approximately 400 cc/(m ² · day · atm) or less ( ^m2・day・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/( ^m2・day・atm) It may have an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less, such as the following. According to still other embodiments, the multifunctional film formed according to method 300 has a film size of about 1000 cc/( ^m2 ·day·atm) or less, or about 900 cc/(m2·day·atm) or less, or about 800 cc/( ^m2 ·day·atm). /( ^m2・day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less ) or less, or about 400cc/( ^m2・day・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/( It may have an oxygen ( _{O 2} ⁾ permeability of about 1100 cc/(m ² ·day · atm) or less, such as less than or equal to about 1100 cc/(m 2 ·day · atm). It will be appreciated that the oxygen (O ₂ ) permeability of the multifunctional film formed according to method 300 can range between any of the minimum and maximum values described above. It will further be appreciated that the oxygen (O ₂ ) permeability of the multifunctional film formed according to method 300 can be any value between any of the minimum and maximum values described above.

According to yet other embodiments, multifunctional films formed according to method 300 can have a particular stability rating. For purposes of embodiments described herein, stability ratings are defined as the maximum percent decrease in elongation at break measured using ASTM D882 after exposure to a temperature of 200° C. for 12 hours. According to certain embodiments, the multifunctional film formed according to the method 300 has a polymorphism of about 88% or less, or about 85% or less, or about 83% or less, or about 80% or less, or about 78% or less, or about It can have a stability rating of about 90% or less, such as 75% or less, or about 73% or less, or even about 70% or less. It will be appreciated that stability ratings for multifunctional films formed according to method 300 can range between any of the above values. It will be further understood that the stability rating for a multifunctional film formed according to method 300 can be any value between any of the minimum and maximum values described above.

According to yet other embodiments, the multifunctional film formed according to method 300 can have a particular Young's modulus measured according to ASTM D882. For example, the multifunctional film formed according to method 300 may be at least about 50 MPa, or at least about 100 MPa, or at least about 150 MPa, or at least about 200 MPa, or at least about 250 MPa, or at least about 300 MPa, or at least about 350 MPa, or at least about It may have a Young's modulus of at least about 10 MPa, such as 400 MPa, or at least about 450 MPa, or even at least about 500 MPa. According to still other embodiments, the multifunctional film formed according to method 300 has a pressure of about 9,000 MPa or less, or about 8,000 MPa or less, or about 7,000 MPa or less, or about 6,000 MPa or less, or about 5 ,000 MPa or less, or about 4,000 MPa or less, or about 3,000 MPa or less, or about 2,000 MPa or less, such as about 10,000 MPa or less. It will be appreciated that the Young's modulus of the multifunctional film formed according to method 300 can range between any of the above minimum and maximum values. It will be further appreciated that the Young's modulus of the multifunctional film formed according to method 300 can be any value between any of the minimum and maximum values described above.

According to yet other embodiments, the multifunctional film formed according to method 300 can have a specific elongation to break measured according to ASTM D882. For example, a multifunctional film formed according to method 300 may contain, for example, at least about 2%, or at least about 3%, or at least about 4%, or at least about 5%, or at least about 6%, or at least about 7%. or may have an elongation at break of at least about 1%, such as at least about 8%, or at least about 9%, or even at least about 10%. According to still other embodiments, the multifunctional film formed according to method 300 has a composition that is less than or equal to about 2000%, or less than or equal to about 1500%, or less than or equal to about 1000%, or less than or equal to about 500%, or less than or equal to about 100%, or It may have an elongation at break of about 90% or less, or about 80% or less, or about 70% or less, or about 60% or less, or about 50% or less, or about 40% or less, or about 30% or less. It will be appreciated that the elongation at break of a multifunctional film formed according to method 300 can range between any of the minimum and maximum values described above. It will be further understood that the elongation at break of a multifunctional film formed according to method 300 can be any value between any of the minimum and maximum values described above.

According to yet other embodiments, a multifunctional film formed according to method 300 can have a particular release coating thickness ratio RC _T / _FBFT , where RC _T is the release coating thickness and FBF _T is the thickness of the flexible barrier film. For example, the multifunctional film formed according to method 300 may be about 15 or less, or about 14 or less, or about 13 or less, or about 12 or less, or about 11 or less, or about 10 or less, or about 9 or less, or about 8 or less than or equal to about 7, or less than or equal to about 6, or less than or equal to about 5, or less than or equal to about 4, or less than or equal to about 2, or less than or equal to about 1.5, or even less than or equal to about 1.1. It can have a release coating thickness ratio RC _T / _FBFT of 16 or less. According to still other embodiments, the multifunctional film formed according to the method 300 has a polymorphism of at least about 0.00002, or at least about 0.00003, or at least about 0.00004, or at least about 0.00005, or at least about 0.00006, or at least about 0.00007, or at least about 0.00008, or at least about 0.00009, or at least about 0.0001, or at least about 0.00015, or even at least about 0.0002, etc. It may have a release coating thickness ratio RC _T /FBF _T of about 0.00001. It will be appreciated that the release coating thickness ratio RC _T / _FBFT of a multifunctional film formed according to method 300 can range between any of the minimum and maximum values described above. It will be further understood that the release coating thickness ratio RC _T / _FBFT of the multifunctional film formed according to method 300 can be any value between any of the minimum and maximum values described above.

According to yet other embodiments, the flexible barrier film of the multifunctional film formed according to method 300 may include certain materials. For example, the flexible barrier film may include a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof. According to yet other embodiments, the flexible barrier film may be comprised of a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof.

According to yet other embodiments, the flexible barrier film of the multifunctional film formed according to method 300 may include certain nylon resin grade materials. For example, the flexible barrier film can include nylon 6, nylon 6,6, nylon 6,4, nylon 6,66, nylon MXD6, PAMACM12, PA6I, PA6I/6T, or any combination thereof. According to yet other embodiments, the flexible barrier film is nylon 6, nylon 6,6, nylon 6,4, nylon 6,66, nylon MXD6, PAMACM12, PA6I, PA6I/6T, or any of the foregoing. It can consist of a combination.

According to certain embodiments, the flexible barrier film may have a certain thickness. For example, the flexible barrier film can be at least about 0.3 mil, or at least about 0.4 mil, or at least about 0.5 mil, or at least about 0.6 mil, or at least about 0.7 mil, or at least It can have a thickness of at least about 0.2 mil, such as about 0.8 mil, or at least about 0.9 mil, or even at least about 1.0 mil. According to still other embodiments, the flexible barrier film 110 is, for example, about 25 mils or less, or about 20 mils or less, or about 15 mils or less, or about 14 mils or less, or about 13 mils or less, or about It can have a thickness of about 30 mils or less, such as 12 mils or less, or about 11 mils or less, or about 10 mils or less, or about 9 mils or less, or even about 8 mils or less. It will be appreciated that the thickness of the flexible barrier film can range between any of the above minimum and maximum values. It will further be appreciated that the thickness of the flexible barrier film can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, the release coating of a multifunctional film formed according to method 300 may include certain materials. For example, the release coating can include silicon-based materials, fluoropolymer-based materials, acrylic-based materials, urethane-based materials, urethane-acrylate-based materials, or combinations thereof. According to yet other embodiments, the release coating may be comprised of silicon-based materials, fluoropolymer-based materials, acrylic-based materials, urethane-based materials, urethane-acrylate-based materials, or combinations thereof.

According to yet other embodiments, the multifunctional film release coating formed according to method 300 may further include certain hard coats. For example, the multifunctional film release coating formed according to method 300 can further include a multifunctional acrylic UV curable coating or a multifunctional acrylic thermoset coating.

According to yet other embodiments, a multifunctional film release coating formed according to method 300 can have a specific peel force measured using a 180 degree peel test on a 2 inch by 6 inch sample. . For example, the release coating may be less than or equal to about 95 g/in, or less than or equal to about 90 g/in, or less than or equal to about 85 g/in, or less than or equal to about 80 g/in, or less than or equal to about 75 g/in, or less than or equal to about 70 g/in, or about 65 g/in /inch or less, or about 60 g/inch or less, or about 55 g/inch or less, or about 50 g/inch or less, or about 45 g/inch or less, or even about 40 g/inch or less, or about 100 g/inch or less. can have. It will be appreciated that the release force of release coating 120 can range between any of the above values. It will further be appreciated that the release force of release coating 120 can be any value between any of the above values.

According to certain embodiments, the release coating of a multifunctional film formed according to method 300 can have a certain thickness. For example, the release coating may be at least about 0.02 microns, or at least about 0.03 microns, or at least about 0.04 microns, or at least about 0.05 microns, or at least about 0.06 microns, or at least about 0.05 microns. The thickness may be at least about 0.01 micron, such as 0.7 micron, or at least about 0.08 micron, or at least about 0.09 micron, or even at least about 0.1 micron. According to still other embodiments, the release coating is about 90 microns or less, or about 80 microns or less, or about 70 microns or less, or about 60 microns or less, or about 50 microns or less, or about 40 microns or less, or about about 30 microns or less, or about 20 microns or less, or about 10 microns or less, or about 9 microns or less, or about 8 microns or less, or about 7 microns or less, or about 6 microns or less, or even about 5 microns or less. It can have a thickness of 100 microns or less. It will be appreciated that the thickness of the release coating can range between any of the above minimum and maximum values. It will be further understood that the thickness of the release coating can be any value between any of the minimum and maximum values listed above.

According to yet other embodiments, the textured surface may include a repeating pattern of channels. According to yet other embodiments, the repeating pattern of channels may be in the form of a crosshatch pattern. According to yet other embodiments, the repeating pattern of channels may be in the form of a woven pattern. According to yet other embodiments, the repeating pattern of channels may have an isotropic orientation. According to yet other embodiments, the repeating pattern of channels may have an anisotropic orientation.

According to yet other embodiments, the channels of the textured surface may have a certain average channel width _ACW . For example, the channel may be at least about 0.2 mm, or at least about 0.3 mm, or at least about 0.4 mm, or at least about 0.5 mm, or at least about 0.6 mm, or at least about 0.7 mm, or at least about 0. The average channel width AC _W may be at least about 0.1 mm, such as .8 mm, or at least about 0.9 mm, or even at least about 1.0 mm. According to still other embodiments, the channel is, for example, about 90 mm or less, or about 80 mm or less, or about 70 mm or less, or about 60 mm or less, or about 50 mm or less, or about 40 mm or less, or about 30 mm or less, or about It may have an average channel width AC _W of about 100 mm or less, such as 25 mm or less, or about 20 mm or less, or even about 15 mm or less. It will be appreciated that the average channel width AC _W may be within a range between any of the above minimum and maximum values. It will further be appreciated that the average channel width AC _W can be any value between any of the above minimum and maximum values.

According to yet other embodiments, the channels of the textured surface may have a certain average channel depth AC _D. For example, the channels may have an average channel depth AC _D of at least about 1 micrometer, such as at least about 1.1 micrometers, or at least about 1.2 micrometers, or at least about 1.3 micrometers. According to still other embodiments, the channels have a mil diameter of about 450 mils or less, or about 400 mils or less, or about 350 mils or less, or about 300 mils or less, or about 250 mils or less, or about 200 mils or less, or about 200 mils or less, or about 250 mils or less, or about 200 mils or less, or about It may have an average channel depth AC _D of less than or equal to about 500 mils, such as less than or equal to about 150 mils, or less than or equal to about 100 mils, or less than or equal to about 75 mils, or less than or equal to about 50 mils, or less than or equal to about 25 mils. It will be appreciated that the average channel depth AC _D of the channels may be within a range between any of the above minimum and maximum values. It will further be appreciated that the average channel depth AC _D can be any value between any of the above minimum and maximum values.

Many different aspects and embodiments are possible. Some of these aspects and embodiments are described herein. After reading this specification, those skilled in the art will understand that these aspects and embodiments are illustrative only and do not limit the scope of the invention. Embodiments can follow any one or more of the embodiments listed below.

Embodiment 1. A multifunctional film for a vacuum bag, the multifunctional film comprising a flexible barrier film including a textured surface and a release coating covering the textured surface of the flexible barrier film, the multifunctional film comprising about With an oxygen (O ₂ ) permeability of less than 1100cc/(m ² ·day · atm), the multifunctional film has a stability rating of approximately 90% or less, and the stability rating is at a temperature of 200°C. Multifunctional film defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure.
Embodiment 2. A multifunctional film for a vacuum bag, the multifunctional film comprising a flexible barrier film including a textured surface and a release coating covering the textured surface of the flexible barrier film, the flexible barrier film comprising: , has an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less, and the multifunctional film has a stability rating of about 90% or less; Multifunctional film defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to temperature.
Embodiment 3. A multifunctional film for a vacuum bag, the multifunctional film comprising a flexible barrier film including a textured surface and a release coating covering the textured surface of the flexible barrier film, the flexible barrier film comprising: , nylon resin grade materials, fluoropolymer materials, polyethylene materials, polypropylene materials, polyolefin materials, or any combination thereof; Multifunctional films containing polymeric materials or combinations thereof.
Embodiment 4. The multifunctional film is about 1100 cc/(m ² ·day · atm) or less, or about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m 2 ·day · atm) or less, or about 800 cc/(m ² ·day · atm) or less. ( ^m2・day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less than about 400cc/( ^m2・day・atm), or less than about 300cc/( ^m2・day・atm), or less than about 200cc/( ^m2・day・atm), or about 100cc/(m2・day・atm) or less The multifunctional film according to Embodiment ² or 3, having an oxygen (O ₂ ) permeability of 2.day.atm) or less.
Embodiment 5. The flexible barrier film is about 1100 cc/(m ² ·day · atm) or less, or about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m ² ·day · atm) or less, or about 800cc/( ^m2・day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less atm) or less, or about 400cc/( ^m2・day・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/ The multifunctional film according to Embodiment 1 or 3, having an oxygen (O ₂ ) permeability of (m ² ·day · atm) or less.
Embodiment 6. The multifunctional film has a stability rating of about 90% or less, where the stability rating is defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. The multifunctional film according to Embodiment 3.
Embodiment 7. The release coating is about 100 g/inch or less, or about 95 g/inch or less, or about 90 g/inch or less, or about 85 g/inch or less, or about 80 g/inch or less, or about 75 g/inch or less, or about 70 g/inch or less than or equal to about 65 g/in, or less than or equal to about 60 g/in, or less than or equal to about 55 g/in, or less than or equal to about 50 g/in, or less than or equal to about 45 g/in, or less than or equal to about 40 g/in. The multifunctional film according to any one of Forms 1, 2, and 3.
Embodiment 8. The multifunctional film has a pressure of at least about 10 MPa, or at least about 50 MPa, or at least about 100 MPa, or at least about 150 MPa, or at least about 200 MPa, or at least about 250 MPa, or at least about 300 MPa, or at least about 350 MPa, or at least about 400 MPa, or The multifunctional film of any one of embodiments 1, 2, and 3 having a Young's modulus of at least about 450 MPa, or at least about 500 MPa.
Embodiment 9. The multifunctional film has a pressure of about 10,000 MPa or less, or about 9,000 MPa or less, or about 8,000 MPa or less, or about 7,000 MPa or less, or about 6,000 MPa or less, or about 5,000 MPa or less, or about 4, 4. The multifunctional film of any one of embodiments 1, 2, and 3, having a Young's modulus of less than or equal to 000 MPa, or less than or equal to about 3,000 MPa, or less than or equal to about 2,000 MPa.
Embodiment 10. The multifunctional film may contain at least about 1%, or at least about 2%, or at least about 3%, or at least about 4%, or at least about 5%, or at least about 6%, or at least about 7%, or at least about 8%. %, or at least about 9%, or at least about 10%.
Embodiment 11. The multifunctional film may be about 2000% or less, or about 1500% or less, or about 1000% or less, or about 500% or less, or about 100% or less, or about 90% or less, or about 80% or less, or about 70% The multifunctional film of any one of embodiments 1, 2, and 3, having an elongation at break of less than or equal to about 60%, or less than or equal to about 50%, or less than or equal to about 40%, or less than or equal to about 30%. .
Embodiment 12. 3. The multifunctional film of embodiment 1 or 2, wherein the flexible barrier film comprises a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof.
Embodiment 13. In embodiments 3 or 12, the nylon resin grade material comprises nylon 6, nylon 6,6, nylon 6,4, nylon 6,66, nylon MXD6, PAMACM12, PA6I, PA6I/6T, or any combination thereof. Multifunctional film as described.
Embodiment 14. 3. The multifunctional film of embodiment 1 or 2, wherein the release coating comprises a silicon-based material, a fluoropolymer-based material, an acrylic-based material, a urethane-based material, a urethane-acrylate-based material, or a combination thereof.
Embodiment 15. 15. The multifunctional film of embodiment 3 or 14, wherein the release coating comprises a multifunctional acrylic UV curable coating or a multifunctional acrylic thermoset coating.
Embodiment 16. The multifunctional film may be about 16 or less, or about 15 or less, or about 14 or less, or about 13 or less, or about 12 or less, or about 11 or less, or about 10 or less, or about 9 or less, or about 8 or less, or Release coating thickness ratio RC _T of about 7 or less, or about 6 or less, or about 5 or less, or about 4 or less, or about 3 or less, or about 2 or less, or about 1.5 or less, or about 1.1 or less The multifunctional film of any one of embodiments _{1, 2, and 3, wherein RCT is the thickness of the release coating and FBF T is} the thickness of the flexible barrier film. .
Embodiment 17. The multifunctional film may have a polymorphism of at least about 0.00001, or at least about 0.00002, or at least about 0.00003, or at least about 0.00004, or at least about 0.00005, or at least about 0.00006, or at least about 0 .00007, or at least about _0.00008 , or at least about 0.00009, or at least about 0.0001, or at least about 0.00015, or at least about _0.0002 . The multifunctional film of any one of embodiments 1, 2, and 3, wherein RCT is the thickness of the release coating and FBF _T is the thickness of the flexible barrier film.
Embodiment 18. The flexible barrier film is at least about 0.2 mil, or at least about 0.3 mil, or at least about 0.4 mil, or at least about 0.5 mil, or at least about 0.6 mil, or at least about 0. .7 mil, or at least about 0.8 mil, or at least about 0.9 mil, or at least about 1.0 mil. Functional film.
Embodiment 19. The flexible barrier film can be about 30 mils or less, or about 25 mils or less, or about 20 mils or less, or about 15 mils or less, or about 14 mils or less, or about 13 mils or less, or about 12 mils or less, or about The multifunctional film of any one of embodiments 1, 2, and 3 having a thickness of 11 mils or less, or about 10 mils or less, or about 9 mils or less, or about 8 mils or less.
Embodiment 20. The release coating is at least about 0.01 microns, or at least about 0.02 microns, or at least about 0.03 microns, or at least about 0.04 microns, or at least about 0.05 microns, or at least about 0.06 microns. or at least about 0.07 microns, or at least about 0.08 microns, or at least about 0.09 microns, or at least about 0.1 microns. A multifunctional film described in .
Embodiment 21. The release coating is about 100 microns or less, or about 90 microns or less, or about 80 microns or less, or about 70 microns or less, or about 60 microns or less, or about 50 microns or less, or about 40 microns or less, or about 30 microns or less , or about 20 microns or less, or about 10 microns or less, or about 9 microns or less, or about 8 microns or less, or about 7 microns or less, or about 6 microns or less, or about 5 microns or less. The multifunctional film according to any one of 1, 2, and 3.
Embodiment 22. 4. The multifunctional film of any one of embodiments 1, 2, and 3, wherein the textured surface of the flexible barrier film comprises a repeating pattern of channels.
Embodiment 23. 23. The multifunctional film of embodiment 22, wherein the repeating pattern of channels is in the form of a crosshatch pattern or a woven pattern.
Embodiment 24. 23. The multifunctional film of embodiment 22, wherein the repeating pattern of channels has an isotropic orientation.
Embodiment 25. 23. The multifunctional film of embodiment 22, wherein the repeating pattern of channels has anisotropic orientation.
Embodiment 26. The channel is at least about 0.1 mm, or at least about 0.2 mm, or at least about 0.3 mm, or at least about 0.4 mm, or at least about 0.5 mm, or at least about 0.6 mm, or at least about 0.7 mm. , or at least about 0.8 mm, or at least about 0.9 mm, or at least about 1.0 _mm .
Embodiment 27. The channel is about 100 mm or less, or about 90 mm or less, or about 80 mm or less, or about 70 mm or less, or about 60 mm or less, or about 50 mm or less, or about 40 mm or less, or about 30 mm or less, or about 25 mm or less, or about 20 mm. 23. The multifunctional film of embodiment 22, having an average channel width AC _W of less than or equal to about 15 mm.
Embodiment 28. The multifunctional film of embodiment 22, wherein the channels have an average channel depth AC _D of at least about 1 micron, or at least about 1.1 micron, or at least about 1.2 micron, or at least about 1.3 micron. .
Embodiment 29. the channel is about 500 mils or less, or about 450 mils or less, or about 400 mils or less, or about 350 mils or less, or about 300 mils or less, or about 250 mils or less, or about 200 mils or less, or about 200 mils or less; or less than or equal to about 150 mils, or less than or equal to about 100 mils, or less than or equal to about 75 mils, or less than or equal to about 50 mils, or _less than or equal to about 25 mils.
Embodiment 30. 4. The multifunctional film of any one of embodiments 1, 2, and 3, wherein the release coating is in direct contact with the textured surface of the flexible barrier film.
Embodiment 31. 4. The multifunctional film of any one of embodiments 1, 2, and 3, wherein the release coating is bonded to the textured surface of the flexible barrier film.
Embodiment 32. A vacuum bag comprising a multifunctional film, the multifunctional film comprising a flexible barrier film including a textured surface oriented to face an internal cavity of the vacuum bag and covering the textured surface of the flexible barrier film. a release coating, the multifunctional film has an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less, and the multifunctional film has a stability rating of about 90% or less. Vacuum bags having a stability rating defined as the maximum percent decrease in elongation at break measured using ASTM D882 after exposure to a temperature of 200° C. for 12 hours.
Embodiment 33. A vacuum bag comprising a multifunctional film, the multifunctional film comprising a flexible barrier film including a textured surface oriented to face an internal cavity of the vacuum bag and covering the textured surface of the flexible barrier film. a release coating, the flexible barrier film has an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less, and the multifunctional film has a stability of about 90% or less. Vacuum bags with a stability rating defined as the maximum percent decrease in elongation at break measured using ASTM D882 after exposure to a temperature of 200° C. for 12 hours.
Embodiment 34. A vacuum bag comprising a multifunctional film, the multifunctional film comprising a flexible barrier film including a textured surface oriented to face an internal cavity of the vacuum bag and covering the textured surface of the flexible barrier film. a release coating, the flexible barrier film comprises a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof; the release coating comprises a silicone-based material, an acrylic A vacuum bag comprising a urethane-based material, a urethane-based material, a fluoropolymer-based material, a urethane-acrylate-based material, or a combination thereof.
Embodiment 35. The multifunctional film is about 1100 cc/(m ² ·day · atm) or less, or about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m 2 ·day · atm) or less, or about 800 cc/(m ² ·day · atm) or less. ( ^m2・day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less than about 400cc/( ^m2・day・atm), or less than about 300cc/( ^m2・day・atm), or less than about 200cc/( ^m2・day・atm), or about 100cc/(m2・day・atm) or less 35. The vacuum bag according to embodiment 33 or 34, wherein the vacuum bag has an oxygen (O ₂ ) permeability of ^2.day.atm or less.
Embodiment 36. The flexible barrier film is about 1100 cc/(m ² ·day · atm) or less, or about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m ² ·day · atm) or less, or about 800cc/( ^m2・day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less atm) or less, or about 400cc/( ^m2・day・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/ The vacuum bag according to embodiment 32 or 34, having an oxygen (O ₂ ) permeability of (m ² ·day · atm) or less.
Embodiment 37. The multifunctional film has a stability rating of about 90% or less, where the stability rating is defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. 35. The vacuum bag of embodiment 34.
Embodiment 38. The release coating is about 100 g/inch or less, or about 95 g/inch or less, or about 90 g/inch or less, or about 85 g/inch or less, or about 80 g/inch or less, or about 75 g/inch or less, or about 70 g/inch or less than or equal to about 65 g/in, or less than or equal to about 60 g/in, or less than or equal to about 55 g/in, or less than or equal to about 50 g/in, or less than or equal to about 45 g/in, or less than or equal to about 40 g/in. The vacuum bag according to any one of Forms 32, 33, and 34.
Embodiment 39. 35. The vacuum bag of any one of embodiments 32, 33, and 34, wherein the multifunctional film has a Young's modulus of at least about 10 MPa.
Embodiment 40. The multifunctional film has a pressure of at least about 10 MPa, or at least about 50 MPa, or at least about 100 MPa, or at least about 150 MPa, or at least about 200 MPa, or at least about 250 MPa, or at least about 300 MPa, or at least about 350 MPa, or at least about 400 MPa, or The vacuum bag of any one of embodiments 32, 33, and 34, having a Young's modulus of at least about 450 MPa, or at least about 500 MPa.
Embodiment 41. The multifunctional film has a pressure of about 10,000 MPa or less, or about 9,000 MPa or less, or about 8,000 MPa or less, or about 7,000 MPa or less, or about 6,000 MPa or less, or about 5,000 MPa or less, or about 4, 35. The vacuum bag of any one of embodiments 32, 33, and 34, having a Young's modulus of 000 MPa or less, or about 3,000 MPa or less, or about 2,000 MPa or less.
Embodiment 42. The multifunctional film may contain at least about 1%, or at least about 2%, or at least about 3%, or at least about 4%, or at least about 5%, or at least about 6%, or at least about 7%, or at least about 8%. %, or at least about 9%, or at least about 10%.
Embodiment 43. The multifunctional film may be about 2000% or less, or about 1500% or less, or about 1000% or less, or about 500% or less, or about 100% or less, or about 90% or less, or about 80% or less, or about 70% 35. The vacuum bag of any one of embodiments 32, 33, and 34, having an elongation at break of less than or equal to about 60%, or less than or equal to about 50%, or less than or equal to about 40%, or less than or equal to about 30%.
Embodiment 44. 34. The vacuum bag of embodiment 32 or 33, wherein the flexible barrier film comprises a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof.
Embodiment 45. In embodiment 34 or 44, the nylon resin grade material comprises nylon 6, nylon 6,6, nylon 6,4, nylon 6,66, nylon MXD6, PAMACM12, PA6I, PA6I/6T, or any combination thereof. Vacuum bag as described.
Embodiment 46. 34. The vacuum bag of embodiment 32 or 33, wherein the release coating comprises a silicon-based material, a fluoropolymer-based material, an acrylic-based material, a urethane-based material, a urethane-acrylate-based material, or a combination thereof.
Embodiment 47. 47. The vacuum bag of embodiment 34 or 46, wherein the release coating comprises a multifunctional acrylic UV curable coating or a multifunctional acrylic thermosetting coating.
Embodiment 48. The multifunctional film can be about 16 or less, or about 15 or less, or about 14 or less, or about 13 or less, or about 12 or less, or about 11 or less, or about 10 or less, or about 9 or less, or about 8 or less, or Release coating thickness ratio RC _T of about 7 or less, or about 6 or less, or about 5 or less, or about 4 or less, or about 3 or less, or about 2 or less, or about 1.5 or less, or about 1.1 or less 35. The vacuum bag of any one of embodiments 32, 33, and 34, wherein _RCT is the thickness of the release coating and FBF _T is the thickness of the flexible barrier film.
Embodiment 49. The multifunctional film may have a polymorphism of at least about 0.00001, or at least about 0.00002, or at least about 0.00003, or at least about 0.00004, or at least about 0.00005, or at least about 0.00006, or at least about 0 .00007, or at least about _0.00008 , or at least about 0.00009, or at least about 0.0001, or at least about 0.00015, or at least about _0.0002 . The vacuum bag of any one of embodiments 32, 33, and 34, wherein RCT is the thickness of the release coating and FBF _T is the thickness of the flexible barrier film.
Embodiment 50. The flexible barrier film is at least about 0.2 mil, or at least about 0.3 mil, or at least about 0.4 mil, or at least about 0.5 mil, or at least about 0.6 mil, or at least about 0. The vacuum of any one of embodiments 32, 33, and 34, having a thickness of .7 mils, or at least about 0.8 mils, or at least about 0.9 mils, or at least about 1.0 mils. bag.
Embodiment 51. The flexible barrier film can be about 30 mils or less, or about 25 mils or less, or about 20 mils or less, or about 15 mils or less, or about 14 mils or less, or about 13 mils or less, or about 12 mils or less, or about The vacuum bag of any one of embodiments 32, 33, and 34, having a thickness of 11 mils or less, or about 10 mils or less, or about 9 mils or less, or about 8 mils or less.
Embodiment 52. The release coating is at least about 0.01 microns, or at least about 0.02 microns, or at least about 0.03 microns, or at least about 0.04 microns, or at least about 0.05 microns, or at least about 0.06 microns. or at least about 0.07 microns, or at least about 0.08 microns, or at least about 0.09 microns, or at least about 0.1 microns. Vacuum bag as described.
Embodiment 53. The release coating is about 100 microns or less, or about 90 microns or less, or about 80 microns or less, or about 70 microns or less, or about 60 microns or less, or about 50 microns or less, or about 40 microns or less, or about 30 microns or less , or about 20 microns or less, or about 10 microns or less, or about 9 microns or less, or about 8 microns or less, or about 7 microns or less, or about 6 microns or less, or about 5 microns or less. 32, 33, and 34. The vacuum bag according to any one of 32, 33, and 34.
Embodiment 54. 35. The vacuum bag of any one of embodiments 32, 33, and 34, wherein the textured surface of the flexible barrier film includes a repeating pattern of channels.
Embodiment 55. 55. The vacuum bag of embodiment 54, wherein the repeating pattern of channels is in the form of a crosshatch pattern or a woven pattern.
Embodiment 56. 55. The vacuum bag of embodiment 54, wherein the repeating pattern of channels has an isotropic orientation.
Embodiment 57. 55. The vacuum bag of embodiment 54, wherein the repeating pattern of channels has an anisotropic orientation.
Embodiment 58. The channel is at least about 0.1 mm, or at least about 0.2 mm, or at least about 0.3 mm, or at least about 0.4 mm, or at least about 0.5 mm, or at least about 0.6 mm, or at least about 0.7 mm. Embodiment 54, having an average channel width AC _W of, or at least about 0.8 mm, or at least about 0.9 mm, or at least about 1.0 mm, or at least about 1 mm (dedicated design); 0.1 mm (general purpose design). Vacuum bags as described.
Embodiment 59. The channel is about 100 mm or less, or about 90 mm or less, or about 80 mm or less, or about 70 mm or less, or about 60 mm or less, or about 50 mm or less, or about 40 mm or less, or about 30 mm or less, or about 25 mm or less, or about 20 mm. 55. The vacuum bag of embodiment 54, having an average channel width AC _W of less than or equal to about 15 mm.
Embodiment 60. 55. The vacuum bag of embodiment 54, wherein the channels have an average channel depth AC _D of at least about 1 micron, or at least about 1.1 microns, or at least about 1.2 microns, or at least about 1.3 microns.
Embodiment 61. the channel is about 500 mils or less, or about 450 mils or less, or about 400 mils or less, or about 350 mils or less, or about 300 mils or less, or about 250 mils or less, or about 200 mils or less, or about 200 mils or less; or less than or equal to about 150 mils, or less than or equal to about 100 mils, or less than or equal to about 75 mils, or less than or equal to about 50 mils, or _less than or equal to about 25 mils.
Embodiment 62. 35. The vacuum bag of any one of embodiments 32, 33, and 34, wherein the release coating is in direct contact with the textured surface of the flexible barrier film.
Embodiment 63. 35. The vacuum bag of any one of embodiments 32, 33, and 34, wherein the release coating is bonded to the textured surface of the flexible barrier film.
Embodiment 64. A method of forming a multifunctional film for a vacuum bag comprising: providing a flexible barrier film; embossing a textured surface on a first side of the flexible barrier film; coating the textured surface of the barrier film with a release coating, the multifunctional film having an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less; , having a stability rating of about 90% or less, where the stability rating is defined as the maximum percentage decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C.
Embodiment 65. A method of forming a multifunctional film for a vacuum bag comprising: providing a flexible barrier film; creating a textured surface on a first side of the flexible barrier film; coating the textured surface of the film with a release coating, the flexible barrier film having an oxygen (O ₂ ) permeability of less than or equal to about 1100 cc/(m ² ·day · atm); The method has a stability rating of about 90% or less, where the stability rating is defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. .
Embodiment 66. A method of forming a multifunctional film for a vacuum bag comprising: providing a flexible barrier film; creating a textured surface on a first side of the flexible barrier film; coating a textured surface of the film with a release coating, the flexible barrier film comprising a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof; The release coating comprises a silicone-based material, an acrylic-based material, a urethane-based material, a fluoropolymer-based material, a urethane-acrylate-based material, or a combination thereof.
Embodiment 67. Embodiments 64, 65, and 66, wherein creating the textured surface on the first side of the flexible barrier film comprises embossing the textured surface on the first side of the flexible barrier film. The method described in any one of the following.
Embodiment 68. Embodiments 64, 65, and 65, wherein creating the textured surface on the first side of the flexible barrier film comprises heat embossing the textured surface on the first side of the flexible barrier film. 66. The method according to any one of 66.
Embodiment 69. Coating the textured surface of the flexible barrier film with a release coating includes gravure coating (reverse or forward), slot die coating, roll coating (reverse or forward), spray coating, Meyer rod coating, or flood coating. 67. The method of any one of embodiments 64, 65, and 66.
Embodiment 70. 67. The method as in any one of embodiments 64, 65, and 66, wherein the method further comprises curing the coating on the textured surface of the flexible barrier film.
Embodiment 71. 71. The method of embodiment 70, wherein curing the coating on the textured surface of the flexible barrier film is performed at a curing temperature of about 200<0>C or less, or about 190<0>C or less, or about 180<0>C or less.
Embodiment 72. Curing the coating on the textured surface of the flexible barrier film may take no more than about 24 hours, or no more than about 23 hours, or no more than about 22 hours, or no more than about 21 hours, or no more than about 20 hours, or about 19 hours. or less than or equal to about 18 hours, or less than or equal to about 17 hours, or less than or equal to about 16 hours, or less than or equal to about 15 hours, or less than or equal to about 14 hours, or less than or equal to about 13 hours, or less than or equal to about 12 hours; 71. The method of embodiment 70.
Embodiment 73. The multifunctional film is about 1100 cc/(m ² ·day · atm) or less, or about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m 2 ·day · atm) or less, or about 800 cc/(m ² ·day · atm) or less. ( ^m2・day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less than about 400cc/( ^m2・day・atm), or less than about 300cc/( ^m2・day・atm), or less than about 200cc/( ^m2・day・atm), or about 100cc/(m2・day・atm) or less 67. The method of embodiment 65 or 66, wherein the method has an oxygen ( _O2 ) permeability of less than or equal to ^2.day.atm ).
Embodiment 74. The flexible barrier film is about 1100 cc/(m ² ·day · atm) or less, or about 1000 cc/(m ² ·day · atm) or less, or about 900 cc/(m ² ·day · atm) or less, or about 800cc/( ^m2・day・atm) or less, or about 700cc/( ^m2・day・atm) or less, or about 600cc/( ^m2・day・atm) or less, or about 500cc/( ^m2・day・atm) or less atm) or less, or about 400cc/( ^m2・day・atm) or less, or about 300cc/( ^m2・day・atm) or less, or about 200cc/( ^m2・day・atm) or less, or about 100cc/ 67. The method of embodiment 64 or 66, wherein the method has an oxygen ( _O2 ) permeability of ( ^m2 ·day·atm) or less.
Embodiment 75. The multifunctional film has a stability rating of about 90% or less, where the stability rating is defined as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. 67. The method of embodiment 66.
Embodiment 76. The release coating is about 100 g/inch or less, or about 95 g/inch or less, or about 90 g/inch or less, or about 85 g/inch or less, or about 80 g/inch or less, or about 75 g/inch or less, or about 70 g/inch or less than or equal to about 65 g/in, or less than or equal to about 60 g/in, or less than or equal to about 55 g/in, or less than or equal to about 50 g/in, or less than or equal to about 45 g/in, or less than or equal to about 40 g/in. 67. The method according to any one of Forms 64, 65, and 66.
Embodiment 77. The multifunctional film has a pressure of at least about 10 MPa, or at least about 50 MPa, or at least about 100 MPa, or at least about 150 MPa, or at least about 200 MPa, or at least about 250 MPa, or at least about 300 MPa, or at least about 350 MPa, or at least about 400 MPa, or 67. The method of any one of embodiments 64, 65, and 66, having a Young's modulus of at least about 450 MPa, or at least about 500 MPa.
Embodiment 78. The multifunctional film has a pressure of about 10,000 MPa or less, or about 9,000 MPa or less, or about 8,000 MPa or less, or about 7,000 MPa or less, or about 6,000 MPa or less, or about 5,000 MPa or less, or about 4, 67. The method of any one of embodiments 64, 65, and 66, wherein the method has a Young's modulus of less than or equal to 000 MPa, or less than or equal to about 3,000 MPa, or less than or equal to about 2,000 MPa.
Embodiment 79. The multifunctional film may contain at least about 1%, or at least about 2%, or at least about 3%, or at least about 4%, or at least about 5%, or at least about 6%, or at least about 7%, or at least about 8%. %, or at least about 9%, or at least about 10%.
Embodiment 80. The multifunctional film may be about 2000% or less, or about 1500% or less, or about 1000% or less, or about 500% or less, or about 100% or less, or about 90% or less, or about 80% or less, or about 70% 67. The method of any one of embodiments 64, 65, and 66, having an elongation at break of less than or equal to about 60%, or less than or equal to about 50%, or less than or equal to about 40%, or less than or equal to about 30%.
Embodiment 81. 66. The method of embodiment 64 or 65, wherein the flexible barrier film comprises a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof.
Embodiment 82. The nylon resin grade material of embodiments 66 and 81 includes nylon 6, nylon 6,6, nylon 6,4, nylon 6,66, nylon MXD6, PAMACM12, PA6I, PA6I/6T, or any combination thereof. Any one of the methods described.
Embodiment 83. 66. The method of embodiment 64 or 65, wherein the release coating comprises a silicon-based material, a fluoropolymer-based material, an acrylic-based material, a urethane-based material, a urethane-acrylate-based material, or a combination thereof.
Embodiment 84. 84. The method of embodiment 66 or 83, wherein the release coating comprises a multifunctional acrylic UV curable coating or a multifunctional acrylic thermoset coating.
Embodiment 85. The multifunctional film may be about 16 or less, or about 15 or less, or about 14 or less, or about 13 or less, or about 12 or less, or about 11 or less, or about 10 or less, or about 9 or less, or about 8 or less, or Release coating thickness ratio RC _T of about 7 or less, or about 6 or less, or about 5 or less, or about 4 or less, or about 3 or less, or about 2 or less, or about 1.5 or less, or about 1.1 or less 67. The method of any one of embodiments 64, 65, and 66, wherein _RCT is the thickness of the release coating and FBF _T is the thickness of the flexible barrier film.
Embodiment 86. The multifunctional film may have a polymorphism of at least about 0.00001, or at least about 0.00002, or at least about 0.00003, or at least about 0.00004, or at least about 0.00005, or at least about 0.00006, or at least about 0 .00007, or at least about _0.00008 , or at least about 0.00009, or at least about 0.0001, or at least about 0.00015, or at least about _0.0002 . 67. The method of any one of embodiments 64, 65, and 66, wherein RCT is the thickness of the release coating and FBF _T is the thickness of the flexible barrier film.
Embodiment 87. The flexible barrier film is at least about 0.2 mil, or at least about 0.3 mil, or at least about 0.4 mil, or at least about 0.5 mil, or at least about 0.6 mil, or at least about 0. 7 mil, or at least about 0.8 mil, or at least about 0.9 mil, or at least about 1.0 mil. .
Embodiment 88. The flexible barrier film can be about 30 mils or less, or about 25 mils or less, or about 20 mils or less, or about 15 mils or less, or about 14 mils or less, or about 13 mils or less, or about 12 mils or less, or about 67. The method of any one of embodiments 64, 65, and 66, having a thickness of 11 mils or less, or about 10 mils or less, or about 9 mils or less, or about 8 mils or less.
Embodiment 89. The release coating is at least about 0.01 microns, or at least about 0.02 microns, or at least about 0.03 microns, or at least about 0.04 microns, or at least about 0.05 microns, or at least about 0.06 microns. or at least about 0.07 microns, or at least about 0.08 microns, or at least about 0.09 microns, or at least about 0.1 microns. The method described in.
Embodiment 90. The release coating is about 100 microns or less, or about 90 microns or less, or about 80 microns or less, or about 70 microns or less, or about 60 microns or less, or about 50 microns or less, or about 40 microns or less, or about 30 microns or less , or about 20 microns or less, or about 10 microns or less, or about 9 microns or less, or about 8 microns or less, or about 7 microns or less, or about 6 microns or less, or about 5 microns or less. 64, 65, and 66.
Embodiment 91. 67. The method of any one of embodiments 64, 65, and 66, wherein the textured surface of the flexible barrier film comprises a repeating pattern of channels.
Embodiment 92. 92. The method of embodiment 91, wherein the repeating pattern of channels is in the form of a crosshatch pattern or a woven pattern.
Embodiment 93. 92. The method of embodiment 91, wherein the repeating pattern of channels has an isotropic orientation.
Embodiment 94. 92. The method of embodiment 91, wherein the repeating pattern of channels has an anisotropic orientation.
Embodiment 95. The channel is at least about 0.1 mm, or at least about 0.2 mm, or at least about 0.3 mm, or at least about 0.4 mm, or at least about 0.5 mm, or at least about 0.6 mm, or at least about 0.7 mm. Embodiment 91 having an average channel width AC _W of , or at least about 0.8 mm, or at least about 0.9 mm, or at least about 1.0 mm, or at least about 1 mm (dedicated design); 0.1 mm (general purpose design). The method described in.
Embodiment 96. The channel is about 100 mm or less, or about 90 mm or less, or about 80 mm or less, or about 70 mm or less, or about 60 mm or less, or about 50 mm or less, or about 40 mm or less, or about 30 mm or less, or about 25 mm or less, or about 20 mm. 92. The method of embodiment 91, having an average channel width AC _W of less than or equal to about 15 mm.
Embodiment 97. 92. The method of embodiment 91, wherein the channels have an average channel depth AC _D of at least about 1 micron, or at least about 1.1 microns, or at least about 1.2 microns, or at least about 1.3 microns.
Embodiment 98. the channel is about 500 mils or less, or about 450 mils or less, or about 400 mils or less, or about 350 mils or less, or about 300 mils or less, or about 250 mils or less, or about 200 mils or less, or about 200 mils or less; or less than or equal to about 150 mils, or less than or equal to about 100 mils, or less than or equal to about 75 mils, or less than or equal to about 50 mils, or _less than or equal to about 25 mils.
Embodiment 99. 67. The method of any one of embodiments 64, 65, and 66, wherein the release coating is in direct contact with the textured surface of the flexible barrier film.
Embodiment 100. 67. The method of any one of embodiments 64, 65, and 66, wherein the release coating is bonded to the textured surface of the flexible barrier film.

Not all of the activities mentioned above in the general description or examples may be required, some of the specific activities may not be required, and one or more further activities in addition to those described may be required. Note that may also be performed. Furthermore, the order in which activities are listed is not necessarily the order in which they are performed.

Advantages, other advantages, and solutions to problems are described above with respect to specific embodiments. However, any benefit, advantage, solution to a problem, and any feature that may result in or make any benefit, advantage, or solution more prominent may be disclosed in any or all of the claims as material, necessary, or , or should not be construed as essential features.

The specification and drawings of the embodiments described herein are intended to provide a general understanding of the structure of the various embodiments. The specification and drawings are not intended to serve as an exhaustive or comprehensive description of all elements and features of devices and systems employing the structures or methods described herein. Separate embodiments may be provided in combination in a single embodiment, and conversely, various features that are, for brevity, described in the context of a single embodiment, may be provided separately or in combination. May also be provided in partial combinations. Further, references to values stated in ranges include each and every value within that range. Many other embodiments may be apparent to those skilled in the art only after reading this specification. Other embodiments may be used and derived from this disclosure, so that structural substitutions, logical substitutions, or other changes may be made without departing from the scope of this disclosure. Accordingly, this disclosure is to be considered illustrative rather than restrictive.

Claims (14)

A multifunctional film for vacuum bags, the multifunctional film comprising:
a flexible barrier film including a textured surface;
a release coating covering the textured surface of the flexible barrier film;
Equipped with
The multifunctional film has an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less,
The multifunctional film has a stability rating of about 90% or less, where the stability rating is as the maximum percent decrease in elongation at break measured using ASTM D882 after 12 hours of exposure to a temperature of 200°C. defined ,
The release coating comprises a multifunctional acrylic UV curable coating or a multifunctional acrylic thermosetting coating.
Multifunctional film. A multifunctional film for vacuum bags, the multifunctional film comprising:
a flexible barrier film including a textured surface;
a release coating covering the textured surface of the flexible barrier film;
Equipped with
The flexible barrier film comprises a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof;
The release coating includes a silicone-based material, an acrylic-based material, a urethane-based material, a fluoropolymer-based material, a urethane-acrylate-based material, or a combination thereof;
The release coating comprises a multifunctional acrylic UV curable coating or a multifunctional acrylic thermosetting coating.
Multifunctional film. The multifunctional film of claim 1 or 2, wherein the flexible barrier film has an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less. 3. The multifunctional film of claim 1 or 2, wherein the release coating has a release force of about 100 g/inch or less. 3. The multifunctional film of claim 1 or 2, wherein the multifunctional film has a Young's modulus of at least about 10 MPa to about 10,000 MPa or less . 3. The multifunctional film of claim 1 or 2, wherein the multifunctional film has an elongation at break of at least about 1% to about 2000% or less . 2. The multifunctional film of claim 1, wherein the flexible barrier film comprises a nylon resin grade material, a fluoropolymer material, a polyethylene material, a polypropylene material, a polyolefin material, or any combination thereof. The multifunctional film of claim 1, wherein the release coating comprises a silicon-based material, a fluoropolymer-based material, an acrylic-based material, a urethane-based material, a urethane-acrylate-based material, or a combination thereof. The multifunctional film includes a release coating thickness ratio RC _T / _FBFT of about 16 or less, where RC _T is the thickness of the release coating and FBF _T is the thickness of the flexible barrier film. The multifunctional film according to claim 1 or 2. 3. The multifunctional film of claim 1 or 2, wherein the textured surface of the flexible barrier film comprises a repeating pattern of channels. 11. The multifunctional film of claim 10 , wherein the channels have an average channel width AC _W of at least about 0.1 mm to about 100 mm or less . 11. The multifunctional film of claim 10 , wherein the channels have an average channel depth AC _D of at least about 1 micron to about 500 mils or less . 3. The multifunctional film of claim 1 or 2, wherein the release coating is in direct contact with the textured surface of the flexible barrier film. A vacuum bag comprising a multifunctional film, the multifunctional film comprising:
a flexible barrier film comprising a textured surface oriented to face the interior cavity of the vacuum bag;
a release coating covering the textured surface of the flexible barrier film;
including;
The multifunctional film has an oxygen (O ₂ ) permeability of about 1100 cc/(m ² ·day · atm) or less,
The multifunctional film has a stability rating of about 90% or less, where the stability rating is as the maximum percent decrease in elongation at break measured using ASTM D882 after exposure to a temperature of 200°C for 12 hours. defined ,
The release coating comprises a multifunctional acrylic UV curable coating or a multifunctional acrylic thermosetting coating.
vacuum bag.